Finding the Fourth Proportional to 45.09, 67.73 and 27.99
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Solution
The fourth proportional to 45.09, 67.73 and 27.99 is: 42.04
Step by Step Solution
- Step 1: Write the proportion equation
45.09 : 67.73 = 27.99 : x - Step 2: Convert to fraction form
45.09/67.73 = 27.99/x - Step 3: Cross multiply
45.09x = 67.73 × 27.99 - Step 4: Simplify right side
45.09x = 1,895.62 - Step 5: Solve for x
x = 1,895.62/45.09 - Step 6: Final answer
x = 42.04
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.